Get your free personalized podcast brief

We scan new podcasts and send you the top 5 insights daily.

The "yield smile" theory posits that bond yields rise in both very strong and very weak economies. In good times, inflation pushes yields up. In bad times, worsening deficits and increased bond supply cause a sell-off, also pushing yields up, trapping policymakers.

Related Insights

When national debt grows too large, an economy enters "fiscal dominance." The central bank loses its ability to manage the economy, as raising rates causes hyperinflation to cover debt payments while lowering them creates massive asset bubbles, leaving no good options.

Due to massive government debt, the Fed's tools work paradoxically. Raising rates increases the deficit via higher interest payments, which is stimulative. Cutting rates is also inherently stimulative. The Fed is no longer controlling inflation but merely choosing the path through which it occurs.

'Fiscal dominance' occurs when government spending, not central bank policy, dictates the economy. In this state, the Federal Reserve's actions, like interest rate cuts, become largely ineffective for long-term stability. They can create short-term sentiment shifts but cannot overcome the overwhelming force of massive government deficit spending.

In a regime of fiscal dominance, where government spending dictates policy, the currency, not bond yields, becomes the primary release valve for economic pressure. While equities and yields may appear stable, the true cost of stimulus will be reflected in a devaluing dollar, a risk often overlooked by bond vigilantes.

A new market dynamic has emerged where Fed rate cuts cause long-term bond yields to rise, breaking historical patterns. This anomaly is driven by investor concerns over fiscal imbalances and high national debt, meaning monetary easing no longer has its traditional effect on the back end of the yield curve.

The combination of restrictive trade policy, locked-in fiscal spending, and a Federal Reserve prioritizing growth over inflation control creates a durable trend toward a weaker U.S. dollar. This environment also suggests longer-term bond yields will remain elevated.

Despite fears of fiscal dominance driving yields up, US bond yields have remained controlled. This suggests a "financial repression" scenario is winning, where the Treasury and Federal Reserve coordinate, perhaps through careful auction management, to keep borrowing costs contained and suppress long-term rates.

The U.S. government's debt is so large that the Federal Reserve is trapped. Raising interest rates would trigger a government default, while cutting them would further inflate the 'everything bubble.' Either path leads to a systemic crisis, a situation economists call 'fiscal dominance.'

In periods of 'fiscal dominance,' where government debt and deficits are high, a central bank's independence inevitably erodes. Its primary function shifts from controlling inflation to ensuring the government can finance its spending, often through financial repression like yield curve control.

High debt and deficits limit policymakers' options. Central banks may face pressure to absorb government debt issuance, which conflicts with the goal of raising interest rates to curb inflation, leading to a new era of "fiscal dominance."